Level Editor Blackbox Crash

[Chronogyros]

Well there are a lot of errors in the log, mostly relating to bad entity files. I'd fix those.

It crashes upon loading any map? But what if you make your own, new map? Does it crash after saving and re-opening?
What about opening a main campaign map?

If it crashes with a minimal map, post the log from that. It will be a lot more trimmed so it'd be easier to find the critical errors.

It looks like I was too hasty when I said crashes upon loading any map. I was able to successfully load up the main Amnesia game maps, as well as create a simple map and load that. It seems to only crash when I load maps that have custom materials in them. What would cause this?

Here is a log of me loading a test map.